Gas-cooler.



F. C. MICHAELIS.

GAS COOLER.

APPLICATION man JULY 22, 1915.

1,182,877. Patented May 9,1916.

Witqesses.

THE COLUMBIA s LAxgoan/mn c0., WASHINGTON, b. c.

FREDERICK C. MICHAELIS, OF EAST MILLCREEK, PENNSYLVANIA, ASSIGNOR TO ERNST R. BEHREND, 0F ERIE, PENNSYLVANIA.

GAS-COOLER.

Application filed July 22, 1915.

To all whom it may concern Be it known that I, FREDERICK C. MICHA- ELIS, a citizen of the United States, residing at East Millcreek, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Coolers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to gas-coolers, and particularly to such coolers as are used in the manufacture of sulfite liquor, made by burning sulfur to produce sulfur dioxid gas, and absorbing it in water charged with a greater or less percentage of lime. To accomplish this successfully the hot sulfur dioxid gases must be brought to a comparatively low temperature by being passed through a cooling apparatus before they are brought into contact with the lime water by which they are to be absorbed. To accomplish this, I have provided an improved cooling apparatus wherein when the gas first enters the cooler, the cooling pipes are comparatively warm, and from that point to the point of the exit of the gas from the cooler, the temperature of the cooling pipes is gradually lowered until at the point of exit the gas has become comparatively cool and is ready to be brought into contact with the lime water by which it is to be absorbed.

My invention also relates to the details of construction of such cooler.

The mechanism and apparatus which I have devised for carrying out my invention, and the features thereof are hereinafter fully set forth and described, and illustrated in the accompanying drawings in which:

Figure 1, shows a top or plan view of my improved gas-cooler. Fig. 2, is a longitudinal section of the same on the line ww in Fig. 1. Fig. 3, is a detail of part of the apparatus.

In these drawings, A, represents a horizontal tank, made of concrete or other suitable material, adapted to contain water of sufficient depth to submerge the longitudinal gas cooling pipes, B, therein, and having at one end a, water outlet or overflow,

Specification of Letters Patent.

Patented May a, 1916.

Serial No. 41,828.

a, and at the other end a raised portion, A, adapted to receive the transverse headers, B, B B and 13*, connected with the ends of the longitudinal pipes, B, by means of the elbow pipes, C. At the discharge end of the tank, A, the gas supply pipe, D, connect's with the ends of the horizontal gas cooling pipes, B, by means of elbow connections, D. The headers, B and B are connected by means of upright gas cooling pipes, E and E, and the headers, B and B are likewise connected by means of upright gas cooling pipes, F and F, the adjacent headers, B and B being connected at 7), and from the header, B*, a pipe, G, extends upward to the discharge pipe, G

The upper parts of the pairs of upright gas cooling pipes, E and E, and of the pipes, F and F, are provided on their peripheries with collars, e, having upright annular extensions, e, at sufficient distance from the peripheries of the pipes, E and E, and F and F, to form annular cups receiving the enlarged ends, it, of the U- shaped pipes, H, telescoping on over and connecting the upper ends ofthe pairs of pipes, E E, and F and F, which cups when filled with water form water-seals to prevent the escape of gas from the pipes, E and E, and F and F.

Above the U-shaped pipes, H, there are transverse water supply pipes, I, provided with jet openings J, discharging cold water directly on the tops of the U-shaped pipes, H, which water flows downward over the outsides of the pipes, H, into the cups and over the edges thereof and downward over the outsides of the upright pipes, E, E, and F, F, upon the headers, B, B and B and B into the tank, A, and thence into the end of the tank, A, and then flows along the tank, A, gradually absorbing heat from the pipes, E, E and F, F, the headers, B, B and B B"; and the pipes, B, until it is discharged from the ends of the tank, A, at the overflow a thereof.

The ends of the pipes, B, the elbow connections, C and D, are provided with ordinary closures, K, K, and C and D ,'which can be readily removed when it is desired to wash out the pipes, and the U-shaped pipes, H, can also be readily lifted off of the tops of the upright pipes, E, E and F, F, when it is desired to clean the same.

In operation the hot gases are supplied from the sulfur furnace to the cooling apparatus through the pipe, D, and they pass thence through the connections, D, to the pipes, B and thence through the connections, C, to the header, B, up through the pipes, E, through the U-shaped connections, H, down through the pipes E, through the header, B and thence through the connec tion, I), to the header, B up through the pipes, F, and through the U-shaped plpes, H, down through the pipes, F, to the header, B and thence through the pipe, G, to the discharge pipe, G, from which it is pumped by a pump mechanism (not shown) to the water supply by which it is to be absorbed, the water for cooling the pipes forming the cooler, meanwhile traveling in the opposite direction from the jets, J, over the gas conveying pipes to the discharge overflow, a, of the tank, A, so that when the gas first enters the cooling pipes the cooling water is at its highest temperature, and as the gas in its travel through the pipes is gradually cooled, the cooling-water surrounding the pipes gradually lowering in temperature until. the gas is finally discharged from the cooler.

I have thus described a convenient mechanism embodying my invention to enable others to utilize the same. however, that many parts of the structure shown and described may be changed and modified without departure from the spirit of my invention.

Therefore What I claim as new and desire to secure by Letters Patent is:

1. The combination in a gas-cooler of a series of horizontal and a series of vertical gas conveying pipes, with a water supply mechanism adapted to supolv cooling-water to the outsides of said pipes, the elements being arranged so that the water will travel in the direction opposite to that of the travel of the gases through said pipes, substantially as set forth.

copies of this patent may be obtained for five cents each, byaddressing the Commissioner of It is obvious, I

2. The combination in a gas-cooler of a tank, horizontal pipes therein, vertical pipes connected to one end of the horizontal pipes, a hot gas supply pipe connecting with the opposite ends of the horizontal pipes, a discharge pipe connecting with the last of the upright pipes, and a perforated wa ter pipe above'the vertical pipes, substan tially as described.

3. The combination in a ras-cooler of a tank, horizontal as-cooling pipes therein, a hot gas supply pipe connected to one of the ends of said pines, vertical coolin pipes connected to the opposite ends of said horizontal pipes, U-shaped pipes removably' connecting the tops of said vertical pipes, and water-seals between said U-shaped pipes and said vertical pipes, and a coolingwater supply pipe above the vertical pipes, substantially as described.

4. In a gas-cooler a series of upright pipes mounted in headers, U-shaped pipes removably telescoping into and connecting the upper ends of pairs of said upright pipes, annular collars and cups on said vertical pipes adapted to receive and surround the ends of said U-shaped pipes substantially as set forth.

5.1n a gas-cooler, a series of upright pipes, mounted in headers, U-shapedpipes removably telescoping into and connecting the upright ends of pairs of said upright pipes, annular collars with upright annular projections thereon on said upright pipes adapted to receive and embrace the, ends of said U-shaped pipes, and a water pipe delivering water on the top of said U-shaped pipes, so that it will flow down into said cups and thence over the edges thereof and down over the outsides of said vertical pipes, substantially as set forth ture.

FREDERICK o. MIGHAELIS. I

Washington, D. C. i

In testimony whereof I afiiX my signa- Patents, 

